Effects of Essential Oil Formulations on the Adult Insect Tribolium Castaneum (Herbst) (Col., Tenebrionidae)

Abstract

Stored product pests such as Tribolium castaneum (Herbst, 1979) are a major problem. Adult insects were obtained from laboratory cultures maintained in the dark in incubators at 25± 1C and 70-80% r.h., reared on wheat flour and fed with flour disks containing a known concentration of essential oil of 9 plants. The chemical components of essential oil of 3 plants, collected on the area of Montenegro, were also identified using GC-MS analysis. The results of insecticidal effect of essential oils were discussed. Also, mortality rate of adult insects was tested. In this research, the essential oils of C. glandulosa which were rich in monoterpene alcohols carvacrol and contained ketonic component showed strong insecticidal and fumigant activity against adults of T. castaneum. Less toxic effect showed essential oils of Satureja montana which had a lower carvacrol and ketonic content. On the other hand, essential oils of Teucrium polium which did not contain ketonic component did not show any activity. Therefore, it was observed that essential oils of C. glandulosa with concentration of 1.14% showed powerful toxic and repellent effect, with very high mortality rate after 24h (56,67%).

Calamintha nepeta (L.) Savi and its Main Essential Oil Constituent Pulegone: Biological Activities and Chemistry

“…A Montenegran sample was rich in PUL (37.5%), menthone (17.6%), piperitenone (15%) and piperitone (10.2%) [ 58 ], while the predominance of carvacrol (79.91%) was reported by others [ 88 ].…”

“…The Montenegran EOCN rich in monoterpene alcohol carvacrol showed strong insecticidal and fumigant activities against Tribolium castaneum adults [ 88 ]. Also, mortality rate of adult insects was tested: 56.67% of the insects died after 24 h, 83.33% after 48 h, while after 96 h the oil showed greatest toxicity and caused the death of 96.67%.…”

Essential Oils in Stored Product Insect Pest Control

“…Few studies claimed to evaluate the ingestion toxicity of EOs. Popović et al [41] evaluated the ingestion toxicity of 9 different EOs against T. castaneum, highlighting that at 1.14% EO concentration, only Calamintha glandulosa (Req.) Benth.…”

Assessing the Toxic Potential of Insecticide and Indigenous Botanical Extract against the Stored Grain Pest Tribolium castaneum (Coleoptera: Tenebrionidae)

“…Dastagir and Hussain [24] reported on the insecticidal activity of plant exacts. Popovic et al [25] studied the mortality rate and insecticidal activity of 9 important plant oils with known concentrations against T. castaneum (Herbst). Hameed et al [26] studied 2 plant extracts, namely Azadirchta indica (Neem) and Nerium oleander (Kanair), fermented products Actinomycetales bacterium and Saccharopolyspora spinosa, and commercial Spinosad biological insecticide were used to evaluate the insecticidal and persistence against T. castaneum Herbst.…”